Check out the Motiv Trident review.  We had 2 testers, a Righty 450 RPM cranker and a Lefty 350 RPM Tweener.

Righty also had a chance to compare to the Jackal LE.

It was fun throwing the Trident, I really like it.

http://tamerbowling.com/motiv-trident-bowling-ball-review/